In tutorials, Prof. Li talked about substitutes like Coke and Pepsi. Now suppose the price of Pepsi falls, what would happen to Coke's demand curve? Question 28Select one: A. The demand curve shifts to the left. B. There is a movement down and along the demand curve. C. The demand curve shifts to the right. D. There is no change in demand or quantity demanded. E. There is a movement up and along the demand curve